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Circulating water system excess pressure energy recycling method and device for power generation overflow control

A technology of a circulating water system and a control method, which is applied in the directions of hydropower generation, engine control, safety devices, etc., can solve problems such as overflow imbalance of hydraulic turbine units

Active Publication Date: 2021-04-27
西安格睿能源动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The main purpose of the present invention is to provide a circulating water system residual pressure energy recovery method and device for power generation over-flow control to solve the problem of unbalanced over-flow of water turbine units in the prior art

Method used

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  • Circulating water system excess pressure energy recycling method and device for power generation overflow control
  • Circulating water system excess pressure energy recycling method and device for power generation overflow control
  • Circulating water system excess pressure energy recycling method and device for power generation overflow control

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Embodiment 1

[0032] According to the circulating water system residual pressure energy recovery and utilization power generation flow control method according to the embodiment of the present invention, the main pipeline of the cooling tower is provided with a main pipeline regulating valve, and the bypass pipeline is provided with a bypass pipeline regulating valve and a pressure sensor, such as figure 1 As shown, the method includes the following steps:

[0033] Step S101, monitor the pressure parameters of the water turbine through the pressure sensor.

[0034] Wherein, the pressure sensor in this embodiment may be a high-precision pressure gauge, and the water turbine may be a tubular water turbine set.

[0035] Step S102, according to the pressure parameter, control the opening degree of the regulating valve of the main pipeline and / or the opening degree of the regulating valve of the bypass pipeline, so as to regulate the flow rate of the water turbine.

[0036] Such as figure 2 A...

Embodiment 2

[0060] According to the embodiment of the present invention, the residual pressure energy of the circulating water system can be recovered and utilized to generate electricity and flow control device, such as figure 2 and Figure 4 shown, including:

[0061] The main pipeline regulating valve 8, the bypass pipeline regulating valve 9, the pressure sensor 4, and the controller 14 connected with the main pipeline regulating valve 8, the bypass pipeline regulating valve 9, and the pressure sensor 4, wherein the The main pipeline regulating valve 8 is arranged in the middle of the main pipeline, the bypass pipeline regulating valve 9 is arranged at the entrance of the bypass pipeline 3, the pressure sensor 4 is arranged behind the bypass pipeline regulating valve 9, and the control The device 14 is used to implement the above-mentioned method for controlling the excess pressure energy of the circulating water system to recover and utilize the excess flow for power generation.

...

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Abstract

The invention provides a method and a device for controlling the overflow of power generation by recovering and utilizing residual pressure energy in a circulating water system. The method includes: monitoring a pressure parameter of a water turbine through the pressure sensor; controlling the main pipeline regulating valve according to the pressure parameter The opening degree and / or the opening degree of the bypass pipeline regulating valve to adjust the flow rate of the water turbine. Aiming at the residual pressure return water power generation system of the circulating water system, a control method based on the inlet pressure of the turbine is provided. By analyzing the inlet pressure of the turbine, combined with the characteristic curve of the turbine, the actual overflow of the bypass pipeline is judged, and the control valve of the main pipeline is controlled separately. The opening degree of the control valve and the opening degree of the bypass pipeline control valve ensure the reasonable distribution of the overflow of each cooling tower and the normal operation of the turbine generator set.

Description

technical field [0001] The invention relates to the field of industrial circulating water tubular water turbine generator sets, in particular to a method and device for controlling excess pressure energy of a circulating water system to recycle and utilize power generation overflow. Background technique [0002] The current circulating water system residual pressure energy recovery and utilization power generation technology, the system includes a main pipeline and a bypass pipeline, wherein the bypass pipeline is installed with a tubular water turbine unit. Driven by the residual pressure energy of the return water, the tubular turbine rotates and drives the generator to output electric energy. [0003] Due to the influence of device load, external environment and other factors, the supply and return water pressure of the circulating water system is in a state of variable working conditions, and the residual pressure energy available for the return water of each cooling tow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B15/06F03B11/00F28F27/00
CPCF03B11/008F03B15/06F05B2270/301F28F27/003Y02E10/20
Inventor 肖礼报
Owner 西安格睿能源动力科技有限公司